Cereal2 · Observed attack

AS266633 UDP flood on 128.201.155.0/24 | 2026-10-13 17:21:33Z

· Event #328556

WhatsApp

Country-level precision. botnet.cl stores the target country, never a city or coordinates, so the marker sits at the country's center.

What this method does

Cereal2 vector 19: Configurable custom-payload UDP flood.

All Configurable custom-payload UDP flood observations
Observed
2026-10-13T17:21:33.112Z
Recorded

Recorded 485ms after observation

Affected network
128.201.155.0/24
Network operator
Novumnet Acesso a Internet Ltda.AS266633
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

All controllers with retained sightings of this order. Older records may have incomplete source coverage.

Geolocation data
ipinfo-lite · 2026-09

Snapshot taken at ingestion; it is never re-resolved later.

Payload observed in C2 command

Observed command data; this does not establish what reached the target.

Custom payload · 32 bytes

Decoded template · 32 bytes

OffsetHexadecimalASCII
0000000062 40 b9 22 f4 1e ce f9b@."....
00000008d9 51 57 c5 94 57 45 d7.QW..WE.
00000010dc 23 47 92 ed 6f f5 6d.#G..o.m
000000180a c9 ca bf 34 82 c1 de....4...

8 or 16 bytes per row, depending on screen width. Dots represent non-printable bytes.

SHA-256 of decoded template

ef9c8167c6545fe2265692778e7c8c1bd9a48a825795b543e89de2e88936779c

Configured datagram length
1400 bytes
Minimum length option
1000 bytes
Maximum length option
1400 bytes

Length options are command settings, not measured packet sizes. The decoded template can differ from the resulting datagrams.

Original encoded value
6240b922f41ecef9d95157c5945745d7dc234792ed6ff56d0ac9cabf3482c1de

Original bytes (Base64)

NjI0MGI5MjJmNDFlY2VmOWQ5NTE1N2M1OTQ1NzQ1ZDdkYzIzNDc5MmVkNmZmNTZkMGFjOWNhYmYzNDgyYzFkZQ==

Other attacks on this network

Within 24 hours of this observation

Other attacks in this country

Within 24 hours of this observation

botnet.cl reports infrastructure it observed. An address appearing here identifies a target or a relay, not a person responsible for the attack.